[Science fiction is] a specialized type of fantasy, in which the prime assumption usually is a new scientific discovery or invention.
![[Science fiction is] a specialized type of fantasy, in which the prime assumption usually is a new scientific discovery or invention.](http://cdn.quoteddaily.com/images/jack-williamson/science-fiction-is-a-specialized-type-of-fantasy-in-which-the-prime-assumption-usually-is-a-new-scientific-discovery-or.jpg)
[Science fiction is] a specialized type of fantasy, in which the prime assumption usually is a new scientific discovery or invention.